Caspian One is hiring: Senior UI Developer in Town of Poland

Senior Capabilities Consultant - UI/UX, Front-End Development and Product Design

Contract Type: B2B Contract

Duration: 6 month rolling contract with at least 2 years of work secured

Rate: Up to 2,300 PLN per day (depending on experience and seniority)

Location: Remote in Poland (only 1 day per month in-office initially)

About the Opportunity

Join a new team being established in Poland as part of an international expansion by a leading global financial institution. This is a rare opportunity to work on an in-house built pricing, execution, and trade processing platform for financial markets as part of a global development team.

Key Responsibilities

• Work across all delivery stages from requirements gathering to post-release support
• Own and collaborate on technical design decisions
• Break down large projects into manageable tasks and coordinate solution delivery
• Build new functionality within existing coding patterns and architecture
• Coach other developers and participate in hiring processes

Qualifications

• 7+ years of relevant development experience
• Expert-level skills in React, Redux, RxJS, NPM/Yarn, webpack, CSS, HTML
• Experience with CI/CD pipelines (e.g., Azure DevOps)
• Strong software design principles and knowledge of design patterns
• Ability to optimize performance of latency-sensitive systems
• Full-stack development capability (preferably with Java backend experience)

Preferred Qualifications

• Financial markets domain knowledge
• Experience with TypeScript in enterprise environments
• Background in high-performance trading systems
• Previous experience in international banking or financial services

What We Offer

• Competitive daily rate up to 2,300 PLN
• Long-term contract security with 2+ years of work already confirmed
• Remote-first working arrangement with minimal office requirements
• Opportunity to work on cutting-edge financial technology
• International collaboration with global teams
• Professional development through coaching and mentoring opportunities

Ideal Candidate Profile

• Seniority level: Mid-Senior level
• Employment type: Contract
• Job function: Information Technology
• Industry: Financial Services and Investment Banking